Nicholas Teausant, the National Guard reservist who was arrested last year for trying to blow up the Los Angeles subway, pleaded guilty to a federal terrorism charge for trying to join the Islamic State. According to the Los Angeles Times, the 22-year-old former community college student was charged with trying to give material support or resources to a foreign terrorist organization. “This case, like others in communities across the United States and around the world, is an example of how a young person from any place and any background might make the terrible decision to try and become part of...